Write Equations
Mr. Majors ordered six boxes of candy and a bucket of popcorn a the concession stand. If the popcorn was $3.20 and the total was $18.20, what was the price of one box of candy? Write the equation and solve.
6x + 3.20 = 18.20
x=$2.50
2x + 4 = 24
What is x = 10
6x + 2 + 6x = 14
x = 1
What is an UNKNOWN AMOUNT?
THE VARIABLE
A VARIABLE IS ALWAYS A LETTER
FACT
A student bought a juice pouch for $2.50 and 3 bags of chips. The total cost was $5.05. Write and solve an equation to determine the cost of a bag of chips.
2.50 + 3x = 5.05
x=$0.85
8v + 9 = 8 3
What is v = 9
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WHAT IS EVERYONES FAVORITE NUMBER?
6 7 !!!!
A NUMBER WITHOUT A VARIABLE
CONSTANT
AN EQUATION DOESNT NEED AN EQUAL SIGN BUT AN EXPRESSION DOES
FALSE
Mrs. Johnson purchased a total of 12 books and magazines for her office. The total bill was $112. She spent $16 on magazines, and the books cost $12 each. How many books did she buy? Write and solve the equation.
16 + 12x = 112
x=8 books
2(n + 5) = −2
What is n = -6
-4(4 + x) = 56
What is x = -18
-7(1 + 6k) = 35
What is k = -1
the operation going on between 7v
MULTIPLICATION
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300
A freight company charges $1.45 per pound, plus a handling fee of $3.25. A customer is charged $9.05 to ship a package.
Write and solve the equation.
1.45x + 3.25 = 9.05
x= 4 pounds
−6 = 2n - 10
What is n = 2
-4b - 5 = -25
What is b = 5
3(p - 3) - 5p = - 6
What is p = - 3/2
an expression that contains variables
ALGEBRAIC EXPRESSION
THERE IS NEVER A VARIABLE ATTACHED TO A CONSTANT
TRUE
Jordan pays $12.50 for a ride sharing membership, lowering his fees to $1.50 per ride. In March, Jordan spent $39.50 to use the ride sharing membership. How many rides did he take? Write and solve the equation.
12.50 + 1.50x = 39.50
x= 18 times
120 = −12(x - 5)
What is x = -5
84 = -7(v - 9)
x = -3
-2(3x - 5) = - 6
What is x = 2
What ARE THE 3 NUMBERS CALLED IN A DIVISION NUMBER SENTENCE? USE AN EXAMPLE WHEN YOU EXPLAIN.
What is DIVIDEND, DIVISOR, & QUOTIENT?
IF THERE IS NO NUMBER IN FRONT OF THE COEFFICIENT, THE COEFFICIENT IS 0.
FALSE THERES ALWAYS AN INVISIBLE 1